/usr/lib/python3/dist-packages/Cryptodome/Hash/SHA1.py is in python3-pycryptodome 3.4.7-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 | # -*- coding: utf-8 -*-
#
# ===================================================================
# The contents of this file are dedicated to the public domain. To
# the extent that dedication to the public domain is not available,
# everyone is granted a worldwide, perpetual, royalty-free,
# non-exclusive license to exercise all rights associated with the
# contents of this file for any purpose whatsoever.
# No rights are reserved.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
# ===================================================================
from Cryptodome.Util.py3compat import *
__all__ = ['new', 'block_size', 'digest_size']
def __make_constructor():
try:
# The sha module is deprecated in Python 2.6, so use hashlib when possible.
from hashlib import sha1 as _hash_new
except ImportError:
from sha import new as _hash_new
h = _hash_new()
if hasattr(h, 'new') and hasattr(h, 'name') and hasattr(h, 'digest_size') and hasattr(h, 'block_size'):
# The module from stdlib has the API that we need. Just use it.
return _hash_new
else:
# Wrap the hash object in something that gives us the expected API.
_copy_sentinel = object()
class _SHA1(object):
digest_size = 20
block_size = 64
oid = "1.3.14.3.2.26"
def __init__(self, *args):
if args and args[0] is _copy_sentinel:
self._h = args[1]
else:
self._h = _hash_new(*args)
def copy(self):
return _SHA1(_copy_sentinel, self._h.copy())
def update(self, *args):
f = self.update = self._h.update
f(*args)
def digest(self):
f = self.digest = self._h.digest
return f()
def hexdigest(self):
f = self.hexdigest = self._h.hexdigest
return f()
_SHA1.new = _SHA1
return _SHA1
new = __make_constructor()
del __make_constructor
# The size of the resulting hash in bytes.
digest_size = new().digest_size
# The internal block size of the hash algorithm in bytes.
block_size = new().block_size
|